Table 3 Summary of the symbols used

known microbe-disease associations: \(\mathbf{\mathcal{R}}\)

# of latent features: z

Disease similarity: S_d

Microbe similarity: S_m

Predicted probability: \(\hat{\boldsymbol{r}}\)

Bernoulli distribution: δ ()

Group preference: \(\mathbf{\mathcal{G}}\)

Objective function: \(\mathbf{\mathcal{F}}\)

Regularization weights: α_u, α_v and β_v

Microbe latent feature vector: U

Disease latent feature vector: V

Bias value: b

Model parameters: Θ

Learning rate: γ